In his quest for help in the fight against the galactic traders, Perry Rhodan receives a mysterious weapon – the Fictivtransmitter – from ES, the spiritual being of the planet Wanderer, during an excursion into infinity. With its help, he can deal a heavy blow to the Springers. However, the patriarchs of the Springers do not give up. Perry Rhodan learns from Levtan, the traitor, that they are meeting on the planet Goszul to discuss new measures against Earth. With the mutants of the Third Power and the plague of forgetfulness, Perry Rhodan disrupts the plans of the warlike traders. He manages to capture a modern Springer ship, the GANYMED. Now he can finally think about fulfilling a wish of the Arkonides Crest and Thora – he dares to advance to Arkon.